All fiber-coupled Terahertz Spectrometer

Menlo THz Systems TERAK15 05 2020 05


Advanced Features and Benefits

  • NEW: >5 THz bandwidth, >90 dB dynamic range
  • Optional: Synchronizable THz-TDS system
  • Multicolor laser outputs available
  • Fast scanning delay line with >850 ps total range
  • Fast data acquisition platform without lock-in amplifier
  • Remote control and data transfer over network
Antenna model TERA15-FC*
Spectral range >5 THz (typically 5.5 THz)
Dynamic range >90 dB (typically 95 dB)
Total scan range >850 ps, flexible setting of scanning range and speed
THz frequency resolution <1.2 GHz
Laser specifications  
Wavelength 1560 nm, alternatively 780 nm or multicolor ports
Total average output power** >500 mW at 1560 nm, > 250 mW at 780 nm
Repetition rate 100 MHz, synchronizable to external source on request
Output ports for THz generation 2 x fiber coupled FC/APC ports, PM fiber
Pulse duration <90 fs
Dimensions / weight  
Optical unit 900 x 600 x 200 mm3, 34 kg
THz control electronics 448 x 132 x 550 mm3, 8 kg
Laser control unit 448 x 132 x 437 mm3, 12 kg

* See product data sheet for detailed specifications
** User can switch between 780 nm and 1560 nm port (arbitrary splitting ratios possible)


The TERA K15 fiber-coupled Terahertz spectrometer provides a complete solution for fast broadband time-domain THz spectroscopy, offering maximum flexibility for scientific THz applications. The system includes our latest figure 9® femtosecond laser source at 1.5 μm emission wavelength, a fiber coupled optical light path with delay line, a THz wave path with THz Emitter, THz detector and TPX THz optics, control electronics and a PC with data aquisition and evaluation software. The delay line offers flexibility by covering a total range of >850 ps, and performs fast scanning up to 50 Hz. The dual detector option offers simultaneous measurements in transmission and reflection geometry. For THz imaging applications our extension unit TERA Image can be integrated into the setup, including image acquisition and reconstruction software. Optionally, the system’s laser source can be synchronized to an external source, and can be extended by additional laser output ports at 780 nm and 1560 nm. To perform THz-TDS with optical sample excitation at those wavelengths, the TERA K15 setup can be upgraded with our THz-Pump-Probe add-on.


  • THz Purge Box Extension Unit

    Product Code: THz Purge Box

    Menlo Purge box option 3w 

    Compact purge box for our THz mirror systems for improved, water line free Terahertz spectroscopy.

    Download PDF: Infosheet THz Purgebox

  • TERA Image Extension Unit

    Product Code: TERA Image


    For THz imaging applications our fully automated extension TERA Image can be integrated.


  • ImageLab: Extended Edition THz Image Analysis

    Product Code: ImageLab


    Hyperspectral Image Processing Software for THz Imaging Data


  • Plug-in Terahertz Reflection Head Add-on for flexible THz measurement geometry

    Product Code: Reflection Head

    MENLO THz Reflection Head

    Plug-in THz reflection head with integrated parabolic mirror THz optics. Compatible with Menlo Systems' fiber-coupled THz antennas TERA15-TX-FC (Emitter) and TERA15-RX-FC (Receiver).

    Download PDF: Infosheet THz Reflection Head

  • Reflection Guide Add-on for flexible THz measurement geometry

    Product Code: Reflection Guide


    THz path pivot platform for quick and flexible manual adjustment of the reflection angle, ranging from a minimal reflection angle of 38° to normal up to a stretched configuration for measurements in transmission geometry. A scale for measurement angle indication is included. The platform assures angle adjustment of the sample holder.

TERA K15 TDS-System 1: Electrical field as a function of time:



Corresponding spectrum of emitted THz radiation:




Menlo Expert Milan Oeri 2022
Dr. Milan Öri
Ihr direkter Draht zu unserem Experten




  • Code / Europäische Preisliste
  • TERA K15

+49 89 189166 0

Menlo Systems, Inc.
+1 973 300 4490

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